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Subject: Re: Tough passed pawn theme from ECM98

Author: Mark Young

Date: 19:42:37 02/22/00

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On February 22, 2000 at 16:14:20, Howard Exner wrote:

>This from Wood - KLein,  Brighton - 1938
>Are programs able to solve this?
>
>[D]8/6Bp/6p1/2k1p3/4PPP1/1pb4P/8/2K5 b - -
>
>
>
>
>Solution:
>
>1... b2+ 2. Kc2 exf4 3. Bxc3 f3 4. Be1 Kd4
>Note that the move 2. ... exf4! must be in the line in order to consider
>the position solved.

New position
8/6Bp/6p1/2k1p3/4PPP1/1pb4P/8/2K5 b - - 0 1

Analysis by Fritz 6:

1...e5xf4
  ²  (0.47)   Depth: 1/2   00:00:00
1...e5xf4 2.Bg7xc3
  ±  (1.16)   Depth: 1/3   00:00:00
1...b3-b2+
  =  (-0.16)   Depth: 1/6   00:00:00
1...b3-b2+ 2.Kc1-b1
  ³  (-0.44)   Depth: 1/9   00:00:00
1...Kc5-d6
  ³  (-0.53)   Depth: 1/9   00:00:00
1...Kc5-d6
  =  (-0.19)   Depth: 2/8   00:00:00
1...Kc5-d6
  =  (-0.19)   Depth: 2/8   00:00:00
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5
  =  (-0.19)   Depth: 3/9   00:00:00
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5 h7-h5 4.Bg7-f8+ Kd6-d7
  =  (-0.16)   Depth: 4/10   00:00:00  1kN
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5 h7-h5 4.Kc1-b1
  =  (-0.09)   Depth: 5/11   00:00:00  3kN
1...Kc5-c4!
  =  (-0.13)   Depth: 5/14   00:00:00  5kN
1...Kc5-c4 2.f4xe5 Kc4-d3 3.g4-g5
  =  (-0.25)   Depth: 5/14   00:00:00  6kN
1...Kc5-c4--
  =  (0.06)   Depth: 6/12   00:00:00  7kN
1...Kc5-c4 2.Bg7xe5 Bc3-a5 3.Kc1-b2 Kc4-d3 4.Kb2xb3 Kd3xe4
  ±  (0.97)   Depth: 6/14   00:00:00  8kN
1...Kc5-d6!
  ±  (0.87)   Depth: 6/14   00:00:00  9kN
1...Kc5-d6! 2.f4-f5 g6xf5 3.g4xf5 h7-h5 4.Kc1-b1 h5-h4 5.Bg7-f8+ Kd6-d7
  =  (-0.06)   Depth: 6/14   00:00:00  10kN
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5 Kd6-e7 4.Kc1-b1 Ke7-f7 5.Bg7-h8
  =  (-0.09)   Depth: 7/16   00:00:00  17kN
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5 Kd6-e7 4.Kc1-b1 Ke7-f7 5.Bg7-h8 h7-h5
  =  (-0.09)   Depth: 8/16   00:00:00  29kN
1...Kc5-d6 2.f4-f5 g6xf5 3.g4xf5 Kd6-e7 4.Kc1-b1 Ke7-f7 5.f5-f6
  =  (-0.09)   Depth: 9/17   00:00:00  70kN
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.06)   Depth: 10/20   00:00:00  147kN
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.00)   Depth: 11/18   00:00:01  321kN, tb=1
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.06)   Depth: 12/19   00:00:02  531kN, tb=15
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.00)   Depth: 13/22   00:00:03  991kN, tb=46
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.00)   Depth: 14/24   00:00:06  1723kN, tb=107
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 Bc3-d4
6.Ba3-b2
  =  (0.06)   Depth: 15/27   00:00:10  3119kN, tb=224
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 h7-h5
6.Ba3-c5
  =  (0.06)   Depth: 16/26   00:00:18  5669kN, tb=394
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 h7-h6
6.Ba3-b2
  =  (0.12)   Depth: 17/30   00:00:32  10474kN, tb=888
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3
  =  (0.00)   Depth: 18/31   00:00:58  19359kN, tb=1599
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 h7-h6
6.Ba3-b2
  =  (0.00)   Depth: 19/32   00:01:43  34673kN, tb=3326
1...Kc5-d6 2.f4-f5 g6xf5 3.Bg7-f8+ Kd6-e6 4.g4xf5+ Ke6-f6 5.Bf8-a3 h7-h6
6.Ba3-b2
  =  (0.00)   Depth: 20/33   00:02:54  58869kN, tb=5830
1...Kc5-d6--
  ²  (0.47)   Depth: 21/41   00:06:54  139221kN, tb=12794
1...Kc5-d6
  ²  (0.47)   Depth: 21/41   00:07:45  155484kN, tb=14246
1...b3-b2+
  ²  (0.44)   Depth: 21/41   00:09:04  182860kN, tb=15808
1...b3-b2+ 2.Kc1-b1 e5xf4 3.Bg7xc3 f4-f3 4.Bc3-e1 Kc5-d4 5.e4-e5 Kd4xe5 6.Be1-f2
  ³  (-0.66)   Depth: 21/43   00:15:57  325050kN, tb=23214
1...b3-b2+ 2.Kc1-b1 e5xf4 3.Bg7xc3 f4-f3 4.Bc3-e1 Kc5-d4 5.e4-e5 Kd4xe5 6.Be1-f2
  ³  (-0.66)   Depth: 22/43   00:21:42  441940kN, tb=30879
1...b3-b2+!
  µ  (-0.97)   Depth: 23/47   00:30:04  618710kN, tb=38755
1...b3-b2+! 2.Kc1-b1 e5xf4 3.Bg7xc3 f4-f3 4.Bc3-e1 Kc5-d4 5.e4-e5 Kd4xe5
6.Be1-f2
  -+  (-1.97)   Depth: 23/47   00:35:55  743550kN, tb=43361
1...b3-b2+!
  -+  (-2.28)   Depth: 24/46   00:51:48  1077180kN, tb=58966
1...b3-b2+!
  -+  (-2.59)   Depth: 25/50   01:55:10  2426474kN, tb=95806

(Young, 22.02.2000)

• Re: Tough passed pawn theme from ECM98 Paulo Soares 20:55:00 02/22/00
• Re: Tough passed pawn theme from ECM98 Dann Corbit 20:23:40 02/22/00
  • Re: Tough passed pawn theme from ECM98 Mark Young 07:37:07 02/23/00
    • Re: Tough passed pawn theme from ECM98 Dann Corbit 10:17:28 02/23/00
      • Re: Tough passed pawn theme from ECM98 Mark Young 17:19:36 02/23/00
      • Re: Tough passed pawn theme from ECM98 Dave Gomboc 13:42:24 02/23/00
        • Re: Tough passed pawn theme from ECM98 José de Jesús García Ruvalcaba 13:47:12 02/23/00
  • Re: Tough passed pawn theme from ECM98 Andrew Dados 20:32:31 02/22/00

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